用氨酸修饰的聚乙硫超膜可提高细菌无活化和过性能
Funeka Matebese1, Nonkululeko Malomane1, Meladi L Motloutsi1
1Institute for Nanotechnology and Water Sustainability, College of Science, Engineering and Technology, University of South Africa, Florida, Johannesburg 1709, South Africa.
Membranes
|August 27, 2025
概括
用氨酸修饰的膜有效地处理城市废水,使细菌失活并抵抗污染. 这些增强的超膜显示出先进的水净化应用的巨大潜力.
科学领域:
- 材料科学
- 环境工程
- 化学工程
背景情况:
- 由于含有病原体,未经处理的市政废水对环境和健康构成重大风险.
- 开发先进的过膜对于有效的废水处理和病原体去除至关重要.
研究的目的:
- 开发氨酸修饰的聚硫 (PES) 超膜,以改善城市废水中的细菌失活性和防腐性.
- 提高UF膜的过性能和抗菌性能.
主要方法:
- 氨酸纳米填充剂的合成和制造,并将其纳入PES膜.
- 包括水友性,形态和接触角度在内的膜性质的表征.
- 在流量,抗污染,可重复使用性和对S. aureus和E. coli的抗菌活性方面评估膜性能.
主要成果:
- 氨酸纳米填充剂的结合改善了膜的水友性 (接触角度降至50-58°) 和流量 (247 Lm-2h-1).
- In-BP@SW/PES膜表现出显著的抗微生物光动力学效应,实现了超过3-log的细菌减少.
- 经过修改的膜具有优异的防腐性能,流量回收率高 (酸为78.9%,城市废水为85%).
结论:
- 氨酸功能化的PES UF膜为先进的废水处理提供了有前途的解决方案.
- 这些膜具有有效的细菌失活性和增强的防腐性,适合长期过应用.
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